H04N 21/26616
For merging a unicast channel into a multicast channel
Official title: {for merging a unicast channel into a multicast channel, e.g. in a VOD application, when a client served by unicast channel catches up a multicast channel to save bandwidth (data multicast over packet-switching network H04L12/18)}
H04N21/26616 (For merging a unicast channel into a multicast channel) appears on 195 US grants and 245 published applications in this corpus.
Search patents in H04N- Granted patents
- 195
- Published applications
- 245
- Assignees
- 117
- Inventors
- 433
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 1 | 7 |
| 2003 | 4 | 11 |
| 2004 | 1 | 2 |
| 2005 | 3 | 6 |
| 2006 | 8 | 14 |
| 2007 | 3 | 10 |
| 2008 | 4 | 11 |
| 2009 | 5 | 17 |
| 2010 | 9 | 11 |
| 2011 | 9 | 17 |
| 2012 | 6 | 7 |
| 2013 | 19 | 14 |
| 2014 | 11 | 15 |
| 2015 | 13 | 12 |
| 2016 | 10 | 10 |
| 2017 | 7 | 13 |
| 2018 | 13 | 8 |
| 2019 | 13 | 5 |
| 2020 | 11 | 14 |
| 2021 | 8 | 5 |
| 2022 | 8 | 10 |
| 2023 | 9 | 7 |
| 2024 | 8 | 6 |
| 2025 | 3 | 8 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multicast assisted delivery4 Aug 2026US 12,701,302 B2British Telecommunications Public Ltd.Co.
- Method and apparatus for sending video data, and electronic device21 Jul 2026US 12,689,785 B2Vivo Mobile Communication Co., Ltd.
- Systems and methods for delivery of content via multicast and unicast14 Jul 2026US 12,684,188 B2Adeia Guides Inc.
- Content delivery24 Feb 2026US 12,563,251 B2British Telecommunications Public Ltd.Co.
- Reducing network bandwidth consumption of real-time broadcasts using generically encoded media objects10 Feb 2026US 12,549,791 B2ViaSat, Inc.
- Method for managing the playback of multimedia content13 Aug 2026US 2026/0238843 A1
- Reducing network bandwidth consumption of real-time broadcasts using generically encoded media objects30 Jul 2026US 2026/0222641 A1ViaSat, Inc.
- Multicast join policy23 Apr 2026US 2026/0113498 A1British Telecommunications Public Ltd.Co.
- Method for managing the playback of multimedia content27 Nov 2025US 2025/0365475 A1
- Software defined network orchestration to manage media flows for broadcast with public cloud networks7 Aug 2025US 2025/0254215 A1Disney Enterprises, Inc.
Most cited
By later US patents
- Interactive video-on-demand system368US 6,543,053 B1The University of Hong Kong · 2003
- Method and apparatus for server broadcast of time-converging multi-media streams175US 6,370,688 B1Enounce, Inc. · 2002
- Method and apparatus for broadcasting media objects with guaranteed quality of service152US 6,801,947 B1Nortel Networks Limited · 2004
- Method and apparatus for controlling time-scale modification during multi-media broadcasts142US 6,598,228 B2Enounde Incorporated · 2003
- Systems and methods for enhanced trick-play functions110US 7,962,942 B1Rovi Guides, Inc. · 2011